EP 1256602 A1 20021113 - Dichroic mixture
Title (en)
Dichroic mixture
Title (de)
Dichroitische Mischung
Title (fr)
Mélange dichroique
Publication
Application
Priority
EP 01810445 A 20010508
Abstract (en)
A mesogenic, crosslinkable mixture comprising at least one polymerisable liquid crystal and at least one polymerisable dichroic dye of the general formula I: <CHEM> wherein A represents a dichroic residue exhibiting at least partial absorption in the visible region > 400 nm; n1, n2, n3, n4 signifies 0 or 1 whereby the sum of n1, n2, n3 and n4 is >0, and B<1> to B<4> represent a group of substructure II <CHEM> wherein the broken line symbolises the linkage to said dichroic residue.
IPC 1-7
IPC 8 full level
G02F 1/13 (2006.01); C09B 1/22 (2006.01); C09B 1/26 (2006.01); C09B 43/20 (2006.01); C09B 69/10 (2006.01); C09K 19/38 (2006.01); C09K 19/60 (2006.01); G02B 5/30 (2006.01)
CPC (source: EP KR US)
C09B 69/10 (2013.01 - KR); C09B 69/101 (2013.01 - EP US); C09B 69/106 (2013.01 - EP US); C09K 19/38 (2013.01 - EP US); C09K 19/60 (2013.01 - EP US); G02B 5/3016 (2013.01 - EP US); C09K 2323/00 (2020.08 - EP US)
Citation (search report)
- [DA] US 5707544 A 19980113 - KELLY STEPHEN [GB]
- [X] WO 0054111 A1 20000914 - BAYER AG [DE], et al
- [X] GB 1006884 A 19651006 - NAT STARCH CHEM CORP
- [X] US 4101269 A 19780718 - CHAMPENOIS MICHEL MAURICE LUCE
- [X] EP 0369376 A2 19900523 - MITSUBISHI RAYON CO [JP]
- [X] EP 0799864 A1 19971008 - HOYA CORP [JP]
- [A] US 6007745 A 19991228 - COATES DAVID [GB], et al
- [A] US 4943617 A 19900724 - ETZBACH KARL-HEINZ [DE], et al
- [X] DATABASE WPI Section Ch Week 199848, Derwent World Patents Index; Class A41, AN 1998-563355, XP002180180
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1256602 A1 20021113; AT E402226 T1 20080815; AU 2002224717 A1 20021118; CN 100556959 C 20091104; CN 1507478 A 20040623; DE 60227797 D1 20080904; EP 1385914 A1 20040204; EP 1385914 B1 20080723; JP 2004535483 A 20041125; JP 4778192 B2 20110921; KR 100864449 B1 20081029; KR 20040043120 A 20040522; US 2004164272 A1 20040826; US 7419620 B2 20080902; WO 02090447 A1 20021114; WO 02090447 A8 20040129
DOCDB simple family (application)
EP 01810445 A 20010508; AT 02715349 T 20020128; AU 2002224717 A 20020128; CH 0200044 W 20020128; CN 02809506 A 20020128; DE 60227797 T 20020128; EP 02715349 A 20020128; JP 2002587515 A 20020128; KR 20037014461 A 20031106; US 47712404 A 20040408